With inexplicable electrical problems keeping the lighthouse from maintaining a steady beam, a foolhardy ship crashes against the island rocks. Four shaken and discontent survivors join the people inside where the Doctor surmises they're all being carefully scrutinized, a prelude to an attack. Written by
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Gentlemen, I've got news for you: this lighthouse is under attack and by morning we might all be dead.
[the Doctor lets out a small laugh
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